The Chelsea 871LBFJW-B5TS or 871LBFJWB5TS is a 10-bolt PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, designed for Allison transmission applications. The series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty. A ductile iron bearing cap, rated 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap address vibrational stress from modern engine designs. Nine speed ratios and thirteen output options cover a wide range of hydraulic pump installations. The 871 Series is the only Chelsea PTO to combine Wet Spline, SmartStart, and Quiet Gear options in a single platform. Common markets include fire and rescue, truck cranes, pumper-cleaner units, and refuse vehicles. Call us to confirm proper fit for your application.
The Chelsea 871 Series replaces the earlier 870 Series PTO. Relevant Parker documents for this series include the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and the 871 Series Sales Literature.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmission applications
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing between housing and bearing cap reduces vibrational effects and improves clamp load
Continuous torque capacity up to 670 lb-ft (908 N-m), no continuous-duty derating required
Nine speed ratios and thirteen output configurations, including SAE B, SAE BB, SAE C, and DIN pump spline options
Wet Spline pump flange, SmartStart, Quiet Gear, and Electronic Overspeed Control (EOC) options available
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m) - check application pages for actual torque ratings
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM (48 kW at 500 RPM / 95 kW at 1000 RPM)
- Output Shaft Types: SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline, DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Output Flange Types: SAE B Pump Flange, SAE C Pump Flange
- Speed Ratios: Nine
- Output Options: Thirteen
- Continuous Operation: Yes
- Lubricant System: Pressure Lube and Wet Spline
- Options Available: Quiet Gear, SmartStart, Electronic Overspeed Control (EOC)
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. Relevant Parker documents for this series include the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and the 871 Series Sales Literature.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
